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            <td width="35%" class="headerValue"><a href="../../index.html">top level</a> - <a href="index.html">src/messages</a> - mqtt_client_mqtt_message.dart<span style="font-size: 80%;"> (source / <a href="mqtt_client_mqtt_message.dart.func.html">functions</a>)</span></td>
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            <td class="headerValue">coverage.lcov</td>
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            <td class="headerItem">Lines:</td>
            <td class="headerCovTableEntry">11</td>
            <td class="headerCovTableEntry">12</td>
            <td class="headerCovTableEntryHi">91.7 %</td>
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            <td class="headerItem">Date:</td>
            <td class="headerValue">2017-10-09</td>
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<pre class="sourceHeading">          Line data    Source code</pre>
<pre class="source">
<a name="1"><span class="lineNum">       1 </span>            : /*</a>
<span class="lineNum">       2 </span>            :  * Package : mqtt_client
<span class="lineNum">       3 </span>            :  * Author : S. Hamblett &lt;steve.hamblett@linux.com&gt;
<span class="lineNum">       4 </span>            :  * Date   : 31/05/2017
<span class="lineNum">       5 </span>            :  * Copyright :  S.Hamblett
<span class="lineNum">       6 </span>            :  */
<span class="lineNum">       7 </span>            : 
<span class="lineNum">       8 </span>            : part of mqtt_client;
<span class="lineNum">       9 </span>            : 
<span class="lineNum">      10 </span>            : /// Represents an MQTT message that contains a fixed header, variable header and message body.
<span class="lineNum">      11 </span>            : /// Messages roughly look as follows.
<span class="lineNum">      12 </span>            : /// ----------------------------
<span class="lineNum">      13 </span>            : /// | Header, 2-5 Bytes Length |
<span class="lineNum">      14 </span>            : /// ----------------------------
<span class="lineNum">      15 </span>            : /// | Variable Header(VH)      |
<span class="lineNum">      16 </span>            : /// | n Bytes Length           |
<span class="lineNum">      17 </span>            : /// ----------------------------
<span class="lineNum">      18 </span>            : /// | Message Payload          |
<span class="lineNum">      19 </span>            : /// | 256MB minus VH Size      |
<span class="lineNum">      20 </span>            : /// ----------------------------
<span class="lineNum">      21 </span>            : 
<span class="lineNum">      22 </span>            : class MqttMessage {
<span class="lineNum">      23 </span>            :   /// The header of the MQTT Message. Contains metadata about the message
<span class="lineNum">      24 </span>            :   MqttHeader header;
<span class="lineNum">      25 </span>            : 
<span class="lineNum">      26 </span>            :   /// Initializes a new instance of the MqttMessage class.
<span class="lineNum">      27 </span><span class="lineCov">          6 :   MqttMessage();</span>
<span class="lineNum">      28 </span>            : 
<span class="lineNum">      29 </span>            :   /// Initializes a new instance of the MqttMessage class.
<span class="lineNum">      30 </span><span class="lineNoCov">          0 :   MqttMessage.fromHeader(MqttHeader header) {</span>
<span class="lineNum">      31 </span>            :     header = header;
<span class="lineNum">      32 </span>            :   }
<span class="lineNum">      33 </span>            : 
<span class="lineNum">      34 </span>            :   /// Creates a new instance of an MQTT Message based on a raw message stream.
<span class="lineNum">      35 </span>            :   static MqttMessage createFrom(MqttByteBuffer messageStream) {
<span class="lineNum">      36 </span>            :     try {
<span class="lineNum">      37 </span><span class="lineCov">          4 :       MqttHeader header = new MqttHeader();</span>
<span class="lineNum">      38 </span>            :       // Pass the input stream sequentially through the component deserialization(create) methods
<span class="lineNum">      39 </span>            :       // to build a full MqttMessage.
<span class="lineNum">      40 </span><span class="lineCov">          4 :       header = new MqttHeader.fromByteBuffer(messageStream);</span>
<span class="lineNum">      41 </span>            :       final MqttMessage message =
<span class="lineNum">      42 </span><span class="lineCov">          4 :       MqttMessageFactory.getMessage(header, messageStream);</span>
<span class="lineNum">      43 </span>            :       return message;
<span class="lineNum">      44 </span>            :     } catch (InvalidHeaderException) {
<span class="lineNum">      45 </span><span class="lineCov">          1 :       throw new InvalidMessageException(</span>
<span class="lineNum">      46 </span>            :           &quot;The data provided in the message stream was not a valid MQTT Message&quot;);
<span class="lineNum">      47 </span>            :     }
<span class="lineNum">      48 </span>            :   }
<span class="lineNum">      49 </span>            : 
<span class="lineNum">      50 </span>            :   /// Writes the message to the supplied stream.
<span class="lineNum">      51 </span>            :   void writeTo(MqttByteBuffer messageStream) {
<span class="lineNum">      52 </span><span class="lineCov">          8 :     header.writeTo(0, messageStream);</span>
<span class="lineNum">      53 </span>            :   }
<span class="lineNum">      54 </span>            : 
<span class="lineNum">      55 </span>            :   /// Reads a message from the supplied stream.
<span class="lineNum">      56 </span>            :   void readFrom(MqttByteBuffer messageStream) {}
<span class="lineNum">      57 </span>            : 
<span class="lineNum">      58 </span>            :   String toString() {
<span class="lineNum">      59 </span><span class="lineCov">          6 :     final StringBuffer sb = new StringBuffer();</span>
<span class="lineNum">      60 </span><span class="lineCov">          6 :     sb.write(&quot;MQTTMessage of type &quot;);</span>
<span class="lineNum">      61 </span><span class="lineCov">         24 :     sb.writeln(this.header.messageType.toString());</span>
<span class="lineNum">      62 </span><span class="lineCov">         18 :     sb.writeln(header.toString());</span>
<span class="lineNum">      63 </span><span class="lineCov">          6 :     return sb.toString();</span>
<span class="lineNum">      64 </span>            :   }
<span class="lineNum">      65 </span>            : }
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